MCMinecraft Assets Explorer

{
  "type": "minecraft:crafting_shaped",
  "category": "redstone",
  "key": {
    "B": "minecraft:bookshelf",
    "S": "#minecraft:wooden_slabs"
  },
  "pattern": [
    "SSS",
    " B ",
    " S "
  ],
  "result": {
    "count": 1,
    "id": "minecraft:lectern"
  }
}